To glance away is to look aside quickly. Glance away and back again.
It is brief enough to be almost involuntary, which is what separates it from turning away. To glance away when asked a direct question is read as discomfort whether it is or not.
1phraseglance awayTo look aside quickly.
“He would glance away every time the subject came up.”
glance away is a gesture.
Practised in Body Language & Gestures